package chapter04.demo4.Example15;
class Animal{
    public void shout(){
        System.out.println("喵喵喵.......");
    }
}
class Dog extends  Animal{
    public void shout() {
        System.out.println("汪汪......");
    }
    public void eat(){
        System.out.println("吃骨头......");
    }
}
public class Example15 {
    public static void main(String[] args) {
        Dog dog = new Dog();
        Animal a1=dog;
        a1.shout();
//        a1.eat(); Animal没有eat方法 所以wat无法使用
    }
}
